Cancellations on 11 Sept

1. 1 IST Istanbul 3.0%of 820usually 3.0% 25
2. 2 CGH São Paulo 6.5%of 292usually 3.2% 19
3. 3 DEL New Delhi 1.1%of 1654usually 0.9% 18
4. 4 SYD Sydney 4.0%of 402usually 1.5% 16
5. 5 BOM Mumbai 2.8%of 435usually 2.0% 12
6. 6 CNF Belo Horizonte 5.7%of 175usually 2.7% 10
7. 7 AMS Amsterdam 1.4%of 694usually 2.0% 10
8. 8 CUN Cancún 5.1%of 177usually 4.9% 9
9. 9 IAD Washington 2.3%of 387usually 3.0% 9
10. 10 MEL Melbourne 2.3%of 355usually 1.0% 8
11. 11 YYZ Toronto 1.5%of 547usually 3.6% 8
12. 12 BOS Boston 1.4%of 587usually 2.9% 8
13. 13 FLL Fort Lauderdale 2.4%of 286usually 2.1% 7
14. 14 LIM Lima 2.4%of 294usually 1.9% 7
15. 15 BNE Brisbane 2.2%of 319usually 2.9% 7
16. 16 OSL Oslo 1.9%of 375usually 1.6% 7
17. 17 LAX Los Angeles 0.9%of 740usually 1.0% 7
18. 18 CBR Canberra 68 departures seen 6
19. 19 YUL Montréal 2.2%of 279usually 3.8% 6
20. 20 NRT Tokyo 1.9%of 316usually 1.7% 6
21. 21 LHR London 0.9%of 678usually 4.9% 6
22. 22 PDX Portland 2.0%of 254usually 1.1% 5
23. 23 BRU Brussels 1.8%of 275usually 1.2% 5
24. 24 ORY Paris 1.5%of 339usually 0.7% 5
25. 25 FCO Rome 0.9%of 547usually 1.1% 5
26. 26 SEA Seattle 0.8%of 659usually 0.7% 5
27. 27 CDG Paris 0.7%of 688usually 1.0% 5
28. 28 LIN Milan 148 departures seen 4
29. 29 MAN Manchester 1.6%of 248usually 3.0% 4
30. 30 SAN San Diego 1.1%of 359usually 0.7% 4
31. 31 DCA Washington 0.9%of 464usually 1.9% 4
32. 32 MIA Miami 0.9%of 457usually 3.7% 4
33. 33 DXB Dubai 0.8%of 523usually 0.8% 4
34. 34 SIN Singapore 0.8%of 500usually 1.6% 4
35. 35 HND Tokyo 0.6%of 669usually 0.9% 4
36. 36 ATL Atlanta 0.4%of 1038usually 0.3% 4
37. 37 BCN Barcelona 0.3%of 1509usually 1.4% 4
38. 38 SFO San Francisco 0.2%of 1882usually 0.4% 4
39. 39 HPN White Plains 67 departures seen 3
40. 40 GIG Rio De Janeiro 1.6%of 191usually 0.9% 3

Ranked by cancelled departures on each airport's own board that day. Orange marks a cancellation rate at least double what that airport usually runs over the past fortnight.

Fri 11 Sept: 425 cancelled of 57,612 tracked (0.7%) across 229 airports

Each bar is one completed day across every airport board that published cancellations that day. Tap a bar for that day's full ranking. The set of counted airports shifts as boards change behaviour, so read the rate alongside the raw count; a gap means we have no usable record for that day. The outlined bar is the day you are viewing.

Some airport boards remove cancelled flights instead of labelling them, so there is no cancellation figure to read at these airports. The busiest of them:

A handful of other boards label routine schedule padding as cancelled, and do so to 15 to 27% of departures every day. Those airports are left out too.